Wo 16/oversized swap countersignal - #5
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WO-16: OVERSIZED_INSTANCE flagged on max-CPU alone, which cannot tell a genuinely oversized instance apart from one that is memory-bound despite low CPU. Fetch the CloudWatch SwapUsage metric alongside the existing CPU/connections fetch and suppress the finding when any measurable swap activity was observed during the window -- a countersignal independent of instance class, so no memory-size lookup table is needed.
wolint flagged the sentinel-check hunk as unattributed: the comment sat after the changed if-condition, not before it, so it didn't govern the line per the hunk-adjacency rule.
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